Acknowledge that the platform guarantees UTF-8 and UTF-16.

These log statements were dead code. That isn't much of a problem,
except that the 'e.getMessage()' that was being logged could be null,
and that would cause a real problem.

Change-Id: I8573bc687a7eda73782bd028e8ddc048a1954dc5

location/java/com/android/internal/location/GpsNetInitiatedHandler.java

@@ -325,7 +325,7 @@ public class GpsNetInitiatedHandler {
         }
         catch (UnsupportedEncodingException e)
         {
-            Log.e(TAG, e.getMessage());
+            throw new AssertionError();
         }
         return decoded;
     }
@@ -338,7 +338,7 @@ public class GpsNetInitiatedHandler {
         }
         catch (UnsupportedEncodingException e)
         {
-            Log.e(TAG, e.getMessage());
+            throw new AssertionError();
         }
         return decoded;
     }